Soil-pulverizer.



No. 732,194. PATENTED JUNE so, 1903. B. L. LAMBERT. SOIL'PULVERIZER.

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Illlllll! PATENTED JUNE 30, .903.

B. L. LAMBERT. V

SOIL PULVBRIZER.

APPLIUATION rmzn JULY 21. 1902.

3 SHIRTS-SHEET 2.

no MODEL.

UNITED STATES Patented June 30, 1903.

PATENT OFFICE.

SOlL-PULVERIZER.

SPECIFICATION forming part of Letters Patent N 0. 732,194, dated June 30, 1903. Application filed July 21, 1902. serial No. 116,332. (No model.)

To aZZ whom it may concern.-

Be it known that I, BIRKLEY L. LAMBERT, a citizen of the United States, residing at Aiken in the county of Aiken and State of South Carolina, have invented certain new and useful Improvements in Soil-Pulverizers; and I do declare the following to be a full, clear, and exact description of'the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being bad to the accompanying drawings, and to the figures of reference marked thereon, which form a part of this specification.

My invention relates to agricultural implements, but more particularly to soil-pulverizers or weedingmaohines, and has for its object to provide a device of this class which is particularly simplein construction, easy of operation, and composed of a minimum number of parts.

A further object of my invention is to providea hoeing-machine to hoe grass and weeds out of streets and sidewalks.

With these objects in view myinvention consists in the novel construction of the machine.

My invention also consists in the novel means of raising or adjusting the cuttingblades.

My invention further consists in the novel gearing and in the relative arrangement of the parts. My invention also consists in certain other novel features of construction and in combination of parts, which will be first fully described and afterward specifically pointed out' in the appended claims.

Referring to the accompanying drawings, Figure 1 is a perspective view of my invention in an operative position. Fig. 2 is a plan view of the frame and cutting-knives, show ing gearing. Fig. 3 is a detail view of the adjusting means. Fig. tis a detail view of the threaded bushing, showing slotted keyway. Fig. 5 is a detail view of the casterstem. Fig. 6 is a top plan of the same. Fig. 7 is a top plan of Fig. 4. Fig. 8 is a top plan of caster-bracket. Fig. 9 is a view of pawls in wheel, and Fig. 10 is a view of ratchet on axle. Fig. 11 is a detail of crank 37 and locking handle 38. Fig. 12 is' a view of ratchet and pawls in wheel. Fig. 13 is a perspective of a portion of the gears30 and 31, showing them out of gear in dotted lines.

Like numerals of reference indicate the same parts throughout the several figures, in which- 1 is the machine, and 2 the frame.

3 indicates a box which incloses the gearing.

4 indicatesthe wheels, and 5 the axle.

6 indicates the cutting-knives, carried on a shaft 7, journaled in the frame 2.

8 indicates the tongue, which is shown broken away in Fig. 1. 9 is the drivers seat, secured to said tongue, which is pivoted at 10 to the frame 2.

11 indicates a quadrant secured on the tongue 8, and 12 is a bell-crank lever fulcrumed on said tongue adapted to engage said quadrant. A link or chain 13 connects the end of lever with the cover 14 of the cutting apparatus.

15 indicates caster havinga stem 16, which is passed into a threaded bushing 17 and secured by a pin 18.

19 indicates the caster-bracket, which is secured to the frame, as shown in Fig. 1. Said caster-bracket is internally threaded and carries the threaded bushing 17 and is also provided with key-groove 20 for the reception of the pin or the key 21. The bushing 17 is provided with a groove 22 its entire length, and the top 23 of saidbushing. is formed like a nut.

24 indicates a small chain secured to the frame and carrying the pin or key 21.

The wheels 4. are provided on their inner sides with two pawls 25, and the axle 5 is formed with ratchet-teeth 26, Figs. 9 and 10,

so that when the machine is moving ahead the pawls and ratchet engage, causing the axle 5 to revolve with the wheels. backing the machine, however, the pawls and ratchet do not engage and the wheels revolve on the axle. V

Suitably secured to the axle 5 is a gear-wheel 27, which meshes with a pinion 28, journaled on an eccentric shaft 29. Integral with said pinion is a gear-wheel 30, which meshes with a pinion 31, loosely journaled on the axle 5. A bevel-gear 33 is carried on a shaft 34:, which also carries a bevel-gear 35 at its forward end. Said bevel-gear 35 meshes with a bevel-gear 36, carried on the shaft 7 of the cutting-knives.

When.

'37 indicates a crank on the inner end of the eccentric shaft 29, and 38 indicates a locking-handle pivoted thereto having a hooked bottom 39, adapted to engage the catch 40.

Having thus described the several parts of my invention, its operation is as follows: It will be noticed by referring to Fig. 2 that the rotary cutting apparatus extends beyond the right-hand wheel, which makes it possible to operate the machine directly against a fence, curb, or other obstruction where the machine could not be operated were the cutting ap paratus centrally located. The tongue 8 rests on the team, and when it isdesired to raise the cutting apparatus clear of any obstruction or when turning the machine around the hand-lever 12 is grasped by the driver and pulled back on the quadrant 11, which wheel 27 and pinion 31.

raises the entire forward part of the machine. When, however, it is desired to adjust the depth of the cutters, the locking pin or key 21 is withdrawn from the caster-bracket and bushing and a wrench is applied to the top 23 of said bushing. Should it be desired to lower the cutters in order to have themtake more land, the bushing 17 is threaded out of the caster-bracket the desired distance and is stopped with the groove 22 directly opposite the groove 20 in the caster-bracket. The locking pin or key is then inserted in said grooves, which securely holds the caster at this adjustment until another change is required.

It is frequently necessary to stop the cutting-knives from revolving, as when passing over a stone walk or street, and I accomplish this by the lever-handle 38 and crank 37.

Referring again to Fig. 2, and, as before described, the pinion 28 and gear-wheel 30 is carried on an eccentric shaft 29, which is so arranged that when the crank 37 and handle 38 are in the position shown in Fig.1 said pinion 28 and gear 30 are in mesh with gearhandle 38 and crank 37 are thrown back, the eccentric shaft 29 carries the pinion 28and gear 30 out of mesh with the gear-wheel 27 and pinion 31, so that when the axle 5 and gear-wheel 27 revolve motion will not be im- When, however, theparted to the shaft 34 and rotary cutting apparatus. When, however, the crank 37 and handle 38 are pushed forward and the handle 38 engages the catch 40, all the gearing is again thrown in engagement and the cutting apparatus commences to revolve.

Having thus fully described my invention, I do not wish to be understood as limiting myself to the exact construction herein set forth, as various slight changes may be made in form and construction, and I consider myself clearly entitled to all such changes which fall within the limit and scope of my invention as defined by the following claims.

It will be noticed that I provide a reboundspring 41 on the tongue 8, so as to impart an easy motion to the machine.

What I claim as new, and desire to secure by Letters Patent of the United States, is-

1. In a weeding-machine, the combination with the frame of a cutting apparatus, and a caster, a stem therefor, a bushing around said stem provided with a slot therein, a caster-bracket adapted to carry said bushing and means entering said slot for locking said bushing and bracket.

2. In a weeding-machine the combination with the wheels and axle, of a gear-wheel carried on said axle, a pinion loosely carried on said axle, gear-wheels eccentrica'lly journaled and adapted to mesh with said gear-wheel and pinion carried on said axle, and means for communicating the motion of said pinion to the cutting apparatus.

3. In a weeding-machine, the combination with the wheels and axle, of pawls secured to said wheels, ratchets and gearing on said axle, gearing eccentrically journaled and adapted to mesh with said gearing on said axle, a cutting apparatus adapted to be operated by said latter gearing, and means for throwing said eccentrically-journaled gearing in and out of engagement with said axle.

In testimony whereof I affix my signature in presence of two witnesses.

' BIRKLEY L. LAMBERT.

Witnesses:

L. R. WEEKS,

ERNEST CORLEY.- 

